Census of Young Stars in the Solar Vicinity
Inseok Song
University of Georgia
Unexpected distribution of close-in exoplanets discovered by high
precision radial velocity monitoring triggered a set of new ideas.
Similarly, the next major breakthrough in the exoplanetary science
will likely come from the statistics of imaged exoplanets. Young
stars within < 70 pc are prime targets for direct imaging
detections of exoplanets because of their youth and proximity to
Earth. To increase the number of imaged exoplanets, we need to
increase available targets first. Currently, there are no more
than 250 young (~100 Myr) stars known within < 70 pc. Because of
better sensitivity and smaller inner working angle, next
generation exoplanet imaging surveys will target all known nearby
young stars and nearby adolescent (~600 Myr) stars. Based on the
results of several past major exoplanet imaging surveys, even with
the generous anticipation of the new discovery space for new
instruments, less than 10% of targeted stars will likely yield
imaged planetary companions. This means that meaningful statistics
will requires thousands of young stars to be surveyed and the
major challenge will be preparing for the best targets. I will
summarize our current knowledge on nearby young stars and I will
talk about on-going surveys and future prospects.
Date: | Jeudi, le 20 janvier 2011 |
Heure: | 11:30 |
Lieu: | Université de Montréal |
| Pavillon Roger-Gaudry, local D-460 |
Contact: | René Doyon |
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